Fig. 4
From: Chloroethylating anticancer drug-induced mutagenesis and its repair in Escherichia coli
Frequency of mutations and cytotoxicity induced by BCNU (a, c) and ACNU (b, d) in the wild-type (open circles), NR12999 (closed triangles), NR11312 (closed squares), and SW102 (closed circles) strains. Statistical analysis was performed using the Student’s t test. **p < 0.01 and *p < 0.05 when compared to the mutation frequency of the wild-type strain. ††p < 0.01 and †p < 0.05 when compared to the mutant frequency of control without treatment